21856744

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4289}}^1$

素因数の和:4322

約数の個数: 48

約数和(自身を含む): 51351300

約数和(自身を除く): 29494556

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4289, 5096, 8578, 17156, 30023, 34312, 55757, 60046, 111514, 120092, 210161, 223028, 240184, 390299, 420322, 446056, 780598, 840644, 1561196, 1681288, 2732093, 3122392, 5464186, 10928372, 21856744]

約数ペア:

[(1, 21856744), (2, 10928372), (4, 5464186), (7, 3122392), (8, 2732093), (13, 1681288), (14, 1561196), (26, 840644), (28, 780598), (49, 446056), (52, 420322), (56, 390299), (91, 240184), (98, 223028), (104, 210161), (182, 120092), (196, 111514), (364, 60046), (392, 55757), (637, 34312), (728, 30023), (1274, 17156), (2548, 8578), (4289, 5096)]